In a study published this week, Swedish researchers looked at the risk of developing deep vein thrombosis or pulmonary embolism after contracting the virus. This risk is present up to 6 months after infection.
SARS-CoV-2 infection is likely to have serious long-term consequences for the health of the infected person. According to a study published on Wednesday, April 6 in British medical journal (BMJ), Covid-19 increases the risk of developing dangerous blood clots for up to six months after infection. Medidispatch These new information measures.
What does this new study say?
It was already known that Covid-19 increased the risk of infection severe blood clots (commonly known as venous thrombosis), but little was known about how long this risk had increased and whether it varied during different epidemic waves.
This Swedish study provides new data on this topic. Indicates an increased risk deep vein thrombosis (blood clot in the leg) up to three months after contracting Covid-19,pulmonary embolism (blood clot in the lung) for up to six months and a bleeding occurred After two months.
Who are most at risk?
This risk is greater in patients with co-morbidities and in patients with severe Covid-19. They were more pronounced during the first epidemic wave than during the second and third waves, the study confirms. According to the researchers, the increased risks observed during the first wave compared to the next two waves may be explained by subsequent improvements in treatments and vaccination coverage in elderly patients.
Is infection more dangerous than vaccination?
A blood clot risk is also referred to as a virus vaccination. In a British study published in the newspaper in August 2021 British medical journalresearchers claim that there ‘high risk’ To develop this side effect after an injection of the Covid vaccine, however, this risk was about 200 times “lower than that associated with infection with SARS-CoV-2”.
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Scientists compared the medical records of 29 million people who received their first dose of Pfizer-BioNtech or Oxford-AstraZeneca.
What actions should be taken?
For the researchers, these findings justify measures aimed at preventing thrombosis (such as administering treatments that prevent the formation of a blood clot in the arteries), especially in high-risk patients, and reinforcing the importance of vaccination against Covid-19 .
What was the researchers’ method?
To conduct their study, researchers identified more than one million people in Sweden who were infected with SARS-Cov2 between February 1, 2020 and May 25, 2021, which corresponds in age, gender and place of residence to more than four million people who were infected with SARS-Cov2. SARS Cov2. He has not tested positive for Covid.
They then calculated the rate of deep vein thrombosis, pulmonary embolism and bleeding in people with Covid-19 during the control period and made comparisons with a control group.
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